gnuplot @5.4.3 build failure

[basriaz]

I'm trying to install gnuplot on macOSX (high sierra) using macports:

sudo port clean gnuplot
sudo port selfupdate
sudo port upgrade outdated
sudo port install gnuplot

I got this error message:

--->  Computing dependencies for gnuplot
--->  Fetching archive for gnuplot
--->  Attempting to fetch gnuplot-5.4.3_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_17.x86_64.tbz2 from http://packages.macports.org/gnuplot
--->  Attempting to fetch gnuplot-5.4.3_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_17.x86_64.tbz2 from http://fra.de.packages.macports.org/gnuplot
--->  Attempting to fetch gnuplot-5.4.3_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_17.x86_64.tbz2 from http://nue.de.packages.macports.org/gnuplot
--->  Building gnuplot
Error: Failed to build gnuplot: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_gnuplot/gnuplot/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port gnuplot failed

How do I fix this error?

[jmroot (Joshua Root)]

Please attach the log.